Answer:
a. 0.3225% per month
b. 3.9393874%
c. $1,879.80
Step-by-step explanation:
a. 3.87%/12
= 3.87/100
= 0.0387/12
= 0.003225 * 100
= 0.3225% per month
b. (1 + .003225)^12 - 1
= 1.039393874 - 1 = .039393874
= 3.9393874% (note how this is slightly larger than 3.87%)
c. The formula to solve this is P r/(1 - ((1/(1+r))^n)
$400,000 * .003225 / (1 - ((1/(1+.003225 ))^360) = $1,879.80